Loose-leaf binder.



-'PATENTED MAY 26, 1903.

N6. 729,476 I R. B. WILSON. v

LOOSE LEAF BINDER. APPLIOATION IILBD IEB. M, 1903 K0 MODEL.

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UNITED STATES- Patented May 26, 1903. p v

RALPHB. WILSON, OF CHICAGO, ILLINOIS.

LOOSE-LEAF BINDER.

SPECIFICATION forming part of Letters Patent N 0. 729,476, dated May 26, 1903. Application filed February 24, 1903. Serial No. 144,722. (No model.)

To all whom it may concern: Be it known that I, RALPH B. WILSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Loose-Leaf Binders; and I do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in temporary binders; and it consists in the provision of a novel device whereby the covers of the binder maybe adjusted nearer together or farther apart for the purpose of accommodating asmall or large number of papers.

More specifically, the invention consists in the provision of two plates which slide in contact with each other, said-plates being fastoned together by toggle-link connection, and in the provision of an adj listing-screw which passes through links of the connection and so arranged that by turning the threaded shaft the plates may be thrown away from each other or nearer together, suitable guide-rods being provided,which are carried by the .plates and telescope within each other in pairs.

The invention consists, further, in various details of construction and in combinations and arrangements of parts, which will be hereinafter fully described and then specifically definedin the appended. claim.

My invention is clearly illustrated in the accompanying drawings, which, with the let-' ters of reference marked thereon, form a part of this application, and in which drawings' Figure 1 is a vertical sectional View through my temporary binder. Fig. 2 is a sectional view taken on line 2 2 of Fig. 1. Fig. 3 is a sectional View longitudinally on line 3 3 of Fig. 2. Fig. 4 is a detail view showing the key attached to the end' of the adjusting screw-threaded rod, and Fig. 5 is a sectional view on line 5 5 of Fig. 4.

Reference now being had to the details of the drawings by letter, A and A designate two angle-plates, one of said plates,A,havin g a flange A at each end adapted to form a guideway in which the plate A slides as the two plates are moved in opposite directions. Each of said plates has a bar Bwith angled ends secured to the inner face of its rightangled projection, and the ends of said-bars, which are bent in opposite directions, are adapted to slide in contact with each other in the guideways O C, which are formed out of pieces of metal which are bent in the shape illustrated in Fig. 3 of the drawings. A rod D, having right threads D on one end and left threads D on its other end, is journaled at one end in one-of the plates 0, as at E, Fig. 3, and its other end, which has a cap or headed screw fitted in the end thereof, is journaled in the opposite plate 0, as at E, Fig. 3. Said rod D also passes through slots in the angled ends of the bars B, as shown in Fig. 3. Passing diametrically through one end of said rods'D is a pin D, a detail view of which is shown inrFig. 4 of the drawings, said cross piece or pin being provided for the purpose of allowing the hole for the key F, which has diametricallyopposite slots in its chambered end and provided for the purpose of rotating.

the shaft in one direction or the other, accordingly as it is desired to have the covers brought nearer together or farther apart. Projecting from the inner faces of said bars B are lugs 13, there being shown in the drawings two of these lugs on each plate or bar, and each of said lugs has an eye adapted to receive a pivotal pin H, on which-the outer ends of the links K are pivotally mounted, the inner ends of each link K being pivoted to the link N, which has a centrally threaded aperture adapted to be fitted over one or the other of the threaded portions of the rod D. Projecting from one of the bars B are the hollow posts M,"which are adapted to telescope over the posts M, which project from the opposite barB, said telescoping rods being provided for the purpose of receiving and holding the papers which are to be bound together. Fastened to the outer faces of the angled portions ofsaid bars B are the base portions Q, to which the covers Q are hinged at points R.

In operation the two plates, which are connected together by means of the toggle-links, may be thrown from or toward each other by rotating the shaft D by means of the key F in one direction or the other, adapting the ICO binder to receive a greater or less number of papers, as may be desired.

While I have shown a particular detailed construction of apparatus illustrated in my invention, it will be understood that I may make alterations in the various details of construction of the binder without departing from the spirit of the invention.

Having thus fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is-- A temporary binder comprising two angleplates, one of which has its ends turned to form flanges to receive the other plate and hold the same together, bars with angled ends fastened to the flanged portions of said plates,

Witnesses:

JAMES D. LEARY, ROBERT W. STEWART. 

